kõikidest laboritest sama meetodi ja identsete katse- ja mõõteobjektide korral saadud katsetulemuse ja heakskiidetud tugiväärtuse vahe
difference between the expectation of test results obtained from all laboratories using the same method on identical test or measurement items and an accepted reference value
In practice, the bias of the measurement method is measured by the displacement of the average of results from a large number of different laboratories all using the same method.
